I used the filters for cleaning deep friers to filter out the solids when i would run kief to distillate. Not sure on the micron but it worked like a charm, but for that lil amount it’s probably not the best
I’ve used them plenty for infused butter and oil on a small scale. Never used with just kief, but it should be somewhere between a coffee filter and cheesecloth.
The stand fits on to the rim of a bowl or in a bowl, depending on the size of the bowl. After you’re done pouring through the bag and let it drain, you can twist it to get more oil out of the bag. Might want to twist it out over a different bowl.
Just let the depleted kief settle to the bottom of your jar. Give it 24 hours to settle down then draw the butter up and out, leaving the puck of kief in the bottom. You can then strain it without all the mess with a ricer or other such thing. You’ll still have some sediment in the butter but you can then triple layer some cheesecloth, wet it in advance with some extra fresh melted butter or ghee and pour your infused oil through it. The pre-wet cloth keeps it from absorbing your good stuff and will latch onto more of those empty trichs.
Of course you’d need to keep the butter liquid while it settled so it might not be a good idea after all. It works great with alcohol but I don’t have to worry about that solidifying before the trichs settle.
I used coconut oil and just heated it on the stove before pouring it into a spool with the filter gasket at the bottom and pushed with 10 psi of nitrogen. I used a 25 micron screen and then a 5 micron.